Add protein translation exercise

[kahgoh]

Protein translation for 48in24

https://forum.exercism.org/t/48in24-exercise-02-13-protein-translation/9556

[github-actions]

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[BNAndras]

@ErikSchierboom, can you take a look at this and #187? Thanks

[ErikSchierboom]

Nice work

[ErikSchierboom]

Could you fix the merge conflict?

[kahgoh]

@ErikSchierboom I've justed fixed and pushed ;)

[ErikSchierboom]

Merge conflict is back, sorry!

[kahgoh]

@ErikSchierboom I've just merged and pushed

[ErikSchierboom]

Thanks!